Wound drainage reservoir



FIG. 1 is a side elevational view of the wound drainage reservoir showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left end side elevational view of FIG. 1; and

FIG. 6 is a right end elevational view of FIG. 1. 

The ornamental design for a wound drainage reservoir, as shown. 